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1996 Fiscal Year Final Research Report Summary

Magnetic Storms

Research Project

Project/Area Number 06452089
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionNagoya University

Principal Investigator

KAMIDE Yohsuke  Solar-Terrestrial Enviroment Lab., Nagoya University Professor, 太陽地球環境研究所, 教授 (60113099)

Co-Investigator(Kenkyū-buntansha) NISHITANI Nozomu  Solar-Terrestrial Enviroment Lab., Nagoya University Res.Associate, 太陽地球環境研究所, 助手 (10218159)
NAKAMURA Rumi  Solar-Terrestrial Enviroment Lab., Nagoya University, Res.Associate, 太陽地球環境研究所, 助手 (90252296)
FUJII Ryoichi  Solar-Terrestrial Enviroment Lab., Nagoya University Professor, 太陽地球環境研究所, 教授 (00132712)
OGINO Tatsuki  Solar-Terrestrial Enviroment Lab., Nagoya University Professor, 太陽地球環境研究所, 教授 (00109274)
KOKUBUN Susumu  Solar-Terrestrial Enviroment Lab., Nagoya University Professor, 太陽地球環境研究所, 教授 (00011502)
Project Period (FY) 1994 – 1996
KeywordsMagnetic storms / Geomagnetic variation / Substorm / Solar wind / Interplanetary magnetic field / Activity indices / Auroral electrojet / Ring current
Research Abstract

On the basis of satellite/ground-based data combined with computer simulations, this research examines :
1. What is the solar wind/interplanetary magnetic field parameter best determines occurrence and the intensity of geomagnetic storms?
2. Is a magnetic storm a simple result of the frequent occurrence of intense substorms?
It uses, in addition to solar wind/interplanetary magnetic field data, the standard Dst and AL indices, the equatorward boundary of the auroral belt determined form auroral particle precipitation(i, e., the size of the polar cap), plasma and field data from the Geotail satellite, and also relies strongly on MHD three-dimensional code of solar wind/magnetosphere coupling that is for the purpose of quantitative evaluation of energy flow associated with geomagnetic storms. Information on ring current constituents derived from the AMPTE and CRRES spacecraft is also referred to. The following are the main findings :
1. Different from earlier statistical studies, such as Sugiura and Chapman and Taylor et al., the main phase of major magnetic storms goes through a two-step growth. This implies that not only the injection rate of ring current particies but also the decay rate of the ring current is important in determining the intensity of maqnetic storms.
2. The magnetotail pressure (=magnetic pressure and plasma pressure) becomes very high during the main phase of magnetic storms. It reaches often ten times larger than its quiet-time value, that cannot be accounted for by an increase in the solar wind dynamic pressure.
3. During the main phase of large storms, the ionospheric ion component becomes dominant, indicating that substorm occurrence is important in the main phase.

  • Research Products

    (59 results)

All Other

All Publications (59 results)

  • [Publications] Y. Kamide: "Ground-based studies of ionospheric convection associated with substorm expansion" J. Geophys. Res.99. 19451-19466 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y. Kamide: "The importance of incoherent scatter radar in substorm studies" J. Geomag. Geoelectr.47. 813-822 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y. Kamide: "The average ionospheric electrodynamics for the different substorm phases" J. Geophys. Res.101. 99-109 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y. Kamide: "The convection electrojet and the substorm electrojet" Ann. Geophys.14. 589-592 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y. Kamide: "Two-component auroral electrojet : Importance for substorm studies" J. Geophys. Res.101. 13027-13046 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S. Kokubun: "Large field events in the distant magnetotail during magnetic stkorms" J. Geomag. Geoelectr.48. 561-576 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tsurutani, B. (ed. ): "Magnetic Storms" American Geophysical Union (in press), 350 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Gonzalez, W., J.A.Joselyn, Y.Kamide, H.W.Kroehl, G.Rostoker, B.T.Tsurutani, and V.Vasyliunas: "What is a geomagnetic storm?" J.Geophys.Res.99. 5771-5792 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakai, H., and Y.Kamide: "A model of the large-scale distribution of the neutral sheet current and its substorm-associated changes." J.Geophys.Res.99. 2365-2373 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kokubun, S., T.Yamamoto, M.H.Acuna, K.Hayashi, K.Shiokawa, and H.Kawano: "The GEOTAIL magnetic field experiment" J.Geomag.Geoelectr.46. 7-21 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fukushima, N., and Y.Kamide: "Geomagnetic substorms with different D/H ratio associated with lowlatitude aurora on October 21,1989" J.Geomag.Geoelectr.46. 171-176 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kokubun, S., H.Kawano, M.Nakamura, T.Yamamoto, K.Tsuruda, H.Hayakawa, A.Matsuoka, and L.A.Frank: "Quasi-periodc oscillations of the magnetopause during northward sheath field" Geophys.Res.Lett.21. 2883-2886 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, R., D.N.Baker, D.H.Fairfield, D.G.Mitchell, R.L.Mcpherron, and E.W.Hones, Jr.: "Plasmaflow and magnetic field characteristics near the midtail neutral sheet" J.Geophys.Res.99. 23591-23601 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., Y.Kamide, A,Brekke, and S.Nozawa: "The altitude profile of ionospheric currents and conductivities deduced from EISCAT observations" Proc.NIPR Symp.on Upper Atomos.Phys.7. 18-25 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakai, H., and Y.Kamide: "On the average position of the near-earth neutral sheet" J.Geomag.Geoelectr.46. 271-278 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakai, H., and Y.Kamide: "Estimating the long-term variations of the magnetotail pressure" J.Geophys, Res.99. 23747-23751 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y.: "Ionospheric currents and magnetic disturbances at low latitudes during substorms" Low-Latitude Ionospheric Ohysics, edited by E.-S.Kuo, Pergamon Press. 251-262 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., A.D.Richmond, B.A.Emery, C.F.Hutchins, B.-H.Ahn, O.de la Beaujardiere, J.C.Foster, R.A.Heelis, H.W.Kroehl, F.J.Rich, and J.A.Slavin: "Ground-based studies of ionospheric convection associated with substorm expansion" J.Geophys.Res.99. 19451-19466 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., H.W.Kroehl, and W.Sun: "The substorm surrent system : A concise review" in Substorms 2, edited by J.R.Kan, J.D.Craven, and S.-I.Akasofu, 29-35, University of Alaska, Fairbanks. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shiokawa, K., K.Yumoto, Y.Tanaka, Y.Kiyama, Y.Kamide, and M.Tokumaru: "A low-latitude aurora observed at Rikubetsu (L=1.6) during the magnetic storm of September 13,1993" in Proc.NIPR Symp.on Upper Atmos.Phys.(1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sun, W., Y.Kamide, J.R.Kan and S.-I.Akasofu: "Development of the substorm current system" in Substorms 2, chited by J.R.Kan, J.D.Craven, and S.-I.akasofu, 441-446, University of Alaska, Fairbanks. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ogino, T., R.J.Walker, and M.Ashour-Abdalla: "A global magnetohydrodynamic simulation of steady magnetospheric convection" in Proc.Intl.Conf.on Substorms (ICS-2), Alaska. 545-551 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ogino, T., R.J.Walker, and M.Ashour-Abdalla: "A global magnetohydrodynamic simulation of the response of the magnetosphere to a northward turning of interplanetary magnetic field" J.Geophys.Res.99. 11027-11042 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nishitani, N., G.Hough, and M.W.J.Scourfield: "Spatial and temporal characteristics of giant undelations" Geophys.Res.Latt.21. 2673-2676 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masuda, S., T.Kosugi, and T.Sakao: "HXT observations of the 24 October 1991, M9.8flare" in X-ray Solar Physics From Yohkoh, edited by Y.Uchida et al.123-126 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakai, H., and Y.Kamide: "Magnetic field changes at the neutral sheet associated with substorm expansion onset : A model prediction and observations." J.Geophys.Res.100. 3521-3530 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., Y.Kamide, A.D.Richmond, A.Brekke, and S.Nozawa: "Regional estimation of electric fields and currents in the polar ionosphere." Geophys.Res.Lett.22. 283-286 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., and S.Kokubun: "Comment on the paper "Substorm time constraints" by R.D.Weimer" J.Geophys.Res.100. 5715-5717 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ahn, B.-H., Y.Kamide, H.W.Kroehl, M.Candidi, and J.S.Murphree: "Substorm changes of the electrodynamic quatities in the polar ionosphere : CDAW9" J.Geophys.Res.100. 23845-23856 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., and Y.Kamide: "Estimate og global and regional sistributions ofd ionospheric electodynamic quantities from EISCAT radar and ground magnetometer data" J.Geomag.Geoelectr.47. 759-770 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y.and A.Brekke: "The importance of incoherent scatter radar in substorm studies" J.Geomag.Geoelectr.47. 813-822 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Matuura, N., R.Fujii, Y.Kamide, S.Kokubun, and T.Oguti: "Japan-EISCAT collaboration on the Svalbard radar : Scientific significance." J.Geomag.Geoelectr.47. 681-684 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, R., D.N.Baker, J.B.Blake, S.Kanekal, B.Kleclker, and D.Hovestadt: "Relativistic electron precipitation enhancements near the outer edge of the radiation belt" Geophys.Res.Lett.22. 1129-1132 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masuda, S., T.Kosugi, H.Hara, T.Sakao, K.Shibata, and S.Tsuneta: "Hard X-ray sources and the primary energy-release site in solar flares" Publ.Astron.Soc.Japan. 47. 677-689 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Baumjohann, W., Y.Kamide, and R.Nakamura: "Substorms' storms, and the near-earth tail." J.Geomag.Geoelectr.47. 177-186 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Brekke, A., and Y.Kamide: "On the relationship between joule heating in the auroral ionosophere" J.Atmos.Terr.Phys.58. 139-143 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., W.Sun, and S.-I.Akosofu: "The average ionospheric electrodynamics for the different substorm phases" J.Geophys.Res.101. 99-109 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., and Rumi Nakamura: "The convection electrojet and the substorm electrojet" Ann.Geophys.14. 589-592 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., and S.Kokubun.: "Two-component auroral electrojet : Importance for substorm sutdies" J.Geophys.Res.101. 13027-13046 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nishida, A., and Y.Kamide: "Comment on the paper, "The relationship between ionospheric convection and magnetic activity, "by J.-H.Shue and D.R.Weimer" J.Geophys.Res.101. 11013-11014 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kokubun, S., L.A.Frank, K.Hayashi, Y.Kamide, R.P.Lepping, T.Mukai, R.Nakamura, W.R.Patterson, T.Yamamoto, and K.Yumoto: "Large field events in the distant magnetotail during magnetic storms." J.Geomag.Geoelectr.48. 561-576 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, R., S.Kokubun, Y.Kamide, T.Yamamoto, L.A.Frank, W.R.Paterson, E.Friis-Christensen, K.Hayashi, T.Lyemori, K.Yumoto, H.Luer, and O.A.Troshichev: J.Geomag.Geoelectr.48. 577-588 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ogino, T., R.J.Walker, and M.Ashour-Abdalla: "An MHD simulation of energy flow in the solar wind, magnetosphere, and ionosphere system : Steady convection events" Adv.Space Res.18. 247-251 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masuda, S., T.Kosugi, S.Tsuneta, and H.Hara: "Discovery of a loop-top hard X-ray source un impulsive solar flares" Adv.Space Res.17. 63-66 (1966)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masuda, S., T.Kosugi, S.Tsuneta, and H.Hara: "Loop-top hard X-ray source as evidence for reconnection above a soft X-ray loop in solar flares" in Proc.Third China-Japan Seminar on Solar Physics, cdited by J.X.Wang et al.(in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y.: "Aurora substorm studies with radars" in EISCAT Monograaph, EISCAT. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., R.L.McPherron, W.Gonzalez, D.C.Hamilton, H.S.Hudson, J.A.Joselyn, S.W.Kahler, H.H.Lundstedt, L.R.Lyons, and E.Szuszczewicz: "Magnetic storms : Current understanding and outstanding questions" in Magbetic storms, edited by B.T.Tsurutani, W.Gonzalez, Y.Kamide, and J.Aballo, AGU Monograph, Washington, D.C.(1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sun, W., Y.Kamide, and S.-I.Akasofu: "Substorm current in the equatorial plane of the magnetosphere desuced from ground-based magnetometer chain records." J.Geophys.Res.101. 24655-24660 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y.: "The substorm current system : Predicting specific features" in Substorms-3, SP-389,5-11, ESA Publ., Nooerdwilk, The Netherlands. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sun, W., S-I.Akasofu, and Y.Kamide: "Development of the substrom current systes in the equatorial plane of the magnetosphere deduced from ground-based magnetometer chain records" in Substorm-3, SP-389,453-458, ESA Publ., Noorrdwijk, The Netherlands. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y.: "Toward and effective comparison between radar and spacecraft observations" in Satellite-Ground Based Coordination Book, edited by M.Lockwood, H.Opgenoorth, M.N.Wild, and R.Stamper, ESA Pub.(1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamide, Y., and J.H.Allen: "Some outstanding problems on storm/substorm relationship" in STPW Proc., edited by J.A.Joselyn. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsurutani, B.T., W.D.Gonzalez, andY.Kamide: "Magnetic storms" Surveys in Geophys.(in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Opgenoorth, H.J., M.A.L.Person, M.Lockwood, R.Stamper, M.N.Wild.R.Pellinen, T.Pulkkinen, K.Kauristie, T.Hughes, and Y.Kamide: "A new family of geomagnetic disturbance indices" in Satellite-Ground Based Coordination Book, edited by M.Lockwood, H.Opgenoorth, M.N.Wild, and R.Stamper, ESA Pub.(1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Rostoker, G., W.Baumjohann, W.Gonzalez, Y.Kamide, S.Kokubun, R.L.McPherron, and B.T.Tsurutani: "Comment on "Decay of the Dst field of geomagnetic disturbance after substorm onset and its implication to storm-substorm relation" by Iyemori and Rao" Ann Geophys.(in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakai, H., Y.Kamide, and C.T.Russell: "Statistical nature of the magnetotail current in the near-Earth region" J.Geophys.Res.102(in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yokoyama, N., and Y.Kamide: "Statistical nature of geomagnetic storms" J.Geophys.Res.(submitted). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Akasofu, S.-I., and Y.Kamide: "Toward a closer integration of magnetospheric research : Magnetospheric currents and convection pattern inferred from ground-based magnetic data." J.Geophys.Res.(submitted). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] edited by B.T.Tsurutani, W.Gonzalez, Y.Kamide, and J.Aballo: Magnetic Storms. AGU Monograph, Washington, D.C., 1996

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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